人民网：武汉5250吨跨铁路大桥精准转体 打通城市交通“肠梗阻”

Core Viewpoint - The successful rotation of a 5250-ton T-shaped steel box girder bridge in Wuhan marks a new record in domestic similar bridge construction, showcasing advanced engineering techniques and safety measures [1][5][6]. Group 1: Project Details - The bridge construction project, known as the Gutan Road North Section, spans approximately 2786 meters and is part of a PPP investment totaling 1.85 billion yuan [6]. - The project is crucial for enhancing the north-south traffic route in the Hankou area and is integral to Wuhan's strategy of becoming an international comprehensive transportation hub [6]. Group 2: Engineering Challenges and Innovations - The construction faced significant challenges due to its proximity to busy railway lines, with over 200 trains passing daily, and various utility lines, necessitating meticulous safety and coordination efforts [2]. - Innovative techniques such as the "cable-stayed auxiliary rotation technology" were employed to ensure precise balance during the bridge's rotation, mitigating risks associated with the bridge's weight and design [5]. Group 3: Expected Impact - Upon completion in late 2025, the bridge is projected to reduce travel time for 220,000 residents from 30 minutes to under 3 minutes, significantly improving urban traffic flow and connectivity between Qiaokou District and Dongxihu District [6].